Information Collection Request: Cooling Water Intake Structures 

Phase II Existing Facility

June 2010

Prepared for

U.S. Environmental Protection Agency

Office of Wastewater Management

1200 Pennsylvania Avenue, N.W.

Washington, DC 20460

EPA Contract Number EP-C-05-046

EPA Work Assignment Number 2-24
June 2010 ii

CONTENTS

1. Identification of the Information Collection ....................................................................... 1

1a. Title of the Information Collection .................................................................................. 1

1b. Short Characterization/Abstract ................................................................................... 1

2. Need for and Use of the Collection..................................................................................... 5

2a. Need/Authority for the Collection.................................................................................... 5

2a(i). Need for the Collection ......................................................................................... 5

2a(ii). Authority for the Collection .................................................................................. 5

2b. Practical Utility/Users of the Data................................................................................ 5

3. Nonduplication, Consultations, and Other Collection Criteria........................................... 7

3a. Nonduplication................................................................................................................. 7

3b. Public Notice Required Prior to ICR Submission to OMB.......................................... 7

3c. Consultations.................................................................................................................... 7

3d. Effects of Less Frequent Collection.............................................................................. 7

3e. General Guidelines........................................................................................................... 8

3f. Confidentiality.................................................................................................................. 8

3g. Sensitive Questions.......................................................................................................... 8

4. The Respondents and the Information Requested............................................................... 8

4a. Respondents/SIC/NAICS ................................................................................................. 8

4b. Information Requested.................................................................................................. 9

4b(i). Data Items, Including Record Keeping Requirements.......................................... 9

4b(ii). Respondent Activities ......................................................................................... 11

5. The Information CollectedCAgency Activities, Collection, Methodology and 

Information Management.................................................................................................. 23

5a. Agency Activities........................................................................................................... 23

5b. Collection Methodology and Information Management............................................. 23

5c. Small Entity Flexibility .................................................................................................. 24

5d. Collection Schedule.................................................................................................... 24

6. Estimating Respondent Burden and Cost of Collection ................................................... 25

6a. Estimating Respondent Burden...................................................................................... 25

6b. Estimating Respondent Costs..................................................................................... 34

6b(i). Estimating Labor Costs....................................................................................... 34

6b(ii). Estimating Capital and Operation and Maintenance Costs................................. 36

6c. Estimating Agency Burden and Costs............................................................................ 37

6d. Estimating the Respondent Universe and Total Burden and Costs............................ 37

6e. Bottom Line Burden Hours and Costs Tables................................................................ 38

6e(i). Respondent Tally................................................................................................. 38

6e(ii). Agency Tally ....................................................................................................... 38

6f. Reasons for Change in Burden....................................................................................... 40

6g. Burden Statement ........................................................................................................... 40

APPENDIX A Respondent Burden and Cost Analysis for the Information Collection 

Requirements of the Section 316(b) Existing Facility Rule
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TABLES

Table 1. Industry Categories and SIC Codes for 316(b) Phase II Existing Facility Rule ........... 9

Table 2. Number of Facilities Assumed to Comply with Information Collection: 

Requirements During the ICR Period by Year............................................................ 25

Table 3. Average per Facility Burden for each NPDES Permit Application Activity.............. 27

Table 4. Average Burden per Facility for Annual Monitoring and Reporting Activities......... 27

Table 5. Impingement Mortality and/or Entrainment Characterization Study Sample Types.. 30

Table 6. Average State Director Burden for Activities............................................................. 33

Table 7. Average per Facility Burden and Costs for each NPDES Permit Renewal Activity.. 36

Table 8. Average Burden and Costs* per Facility for Annual Monitoring and Reporting 

Activities..................................................................................................................... 37

Table 9. Average State Director Burden and Costs* for Activities.......................................... 37

Table 10. Summary of Average Annual Respondents, Burden, and Costs for Facilities 

and State Directors for the ICR Period ....................................................................... 38

Table 11. Summary of Average Annual Agency Burden and Costs for the ICR Period ............ 38

Table 12. Burden Comparison: 2007 vs. 2010 ICR for 316(b) Phase II Existing Facilities....... 39
June 2010 1

1. Identification of the Information Collection

1a. Title of the Information Collection

TITLE: Information Collection Request for Cooling Water Intake Structure Phase II Existing 

Facilities

EPA ICR Number: 2060.03

1b. Short Characterization/Abstract

The section 316(b) Phase II Existing Facility rule requires the collection of information from 

existing point source facilities that generate and transmit electric power (as a primary activity) or 

generate electric power but sell it to another entity for transmission, use a cooling water intake 

structure (CWIS) that uses at least 25 percent of the water it withdraws from waters of the U.S. 

for cooling purposes, and have a design intake flow of 50 million gallons per day (MGD) or 

more. Section 316(b) of the Clean Water Act (CWA) requires that any standard established under 

section 301 or 306 of the CWA and applicable to a point source must require that the location, 

design, construction and capacity of CWISs at that facility reflect the best technology available 

(BTA) for minimizing adverse environmental impact. Such impact occurs as a result of 

impingement (where fish and other aquatic life are trapped on technologies at the entrance to 

CWIS) and entrainment (where aquatic organisms, eggs, and larvae are taken into the cooling 

system, passed through the heat exchanger, and then pumped back out with the discharge from 

the facility). The 316(b) Phase II rule establishes requirements applicable to the location, design, 

construction, and capacity of CWISs at Phase II existing facilities. These requirements establish 

the BTA for minimizing adverse environmental impact associated with the use of CWISs.

Existing electric power generating facilities that do not meet the threshold requirements in 

§ 125.91 of the Phase II rule are not covered by this Information Collection Request (ICR).

All Phase II existing facilities must reduce impingement mortality for all life stages of fish and 

shellfish by 80 to 95% from the calculation baseline. Some Phase II existing facilities must also 

reduce entrainment for all life stages of fish and shellfish by 60 to 90% from the calculation 

baseline. A Phase II existing facility may choose one of the following five compliance 

alternatives in § 125.94(a) for establishing BTA for minimizing adverse environmental impact at 

the site:

1. i. Demonstrate that it has reduced, or will reduce, its flow commensurate with a closedcycle recirculating system. In this case, the facility will not be required to demonstrate 

further that it meets the impingement mortality and entrainment performance standards; 

or

ii. Demonstrate that it has reduced, or will reduce, its maximum through-screen design 

intake velocity to 0.5 ft/s or less. In this case, the facility will not be required to 

demonstrate further that it meets the performance standards for impingement mortality;
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2. Demonstrate that its existing design and construction technologies and/or operational 

measures meet the performance standards specified in § 125.94(b); 

3. Demonstrate that the facility has selected design and construction technologies and/or 

operational measures that will, in combination with any existing design and construction 

technologies and/or operational measures meet the performance standards specified in 

§ 125.94(b); 

4. Demonstrate that the facility has installed, or will install, and properly operate and 

maintain an approved design and construction technology in accordance with § 125.99(a) 

or (b); or

5. Demonstrate that the facility has selected, installed, and is properly operating and 

maintaining, or will install and properly operate and maintain design and construction 

technologies and/or operational measures determined to be the BTA for the facility in 

accordance with § 125.94(a)(5)(i) and (ii).The facility must meet one of two cost tests: (1) 

demonstrate that costs of compliance under alternatives 2–4 would be significantly

greater than costs considered by the Administrator, or (2) demonstrate that costs of 

compliance under alternatives 2–4 would be significantly greater than the benefits of 

complying with the applicable performance standards at the facility.

The Section 316(b) Phase II Existing Facility rule requires several distinct types of information 

collection as part of the National Pollutant Discharge Elimination System (NPDES) application. 

In general, the information is used to identify which of the performance standard requirements in 

the rule apply to the facility, how the facility is meeting these requirements, and whether the 

facility is meeting the performance requirements. Specific data requirements that apply to all 

facilities regardless of the compliance alternative selected are:

1. Source water physical data that shows the physical configuration of all source 

waterbodies used by the facility, identifies and characterizes the source waterbody’s 

hydrological and geomorphological features, and provides location through maps;

2. CWIS data that shows the configuration and location of cooling water intake structures, 

provides details on the design operation of each CWIS, and diagrams flow distribution 

and water balance; and

3. Cooling water system data that characterizes the operation of the cooling water system 

and its relationship to the CWIS

Additionally, most Phase II existing facilities must submit a Comprehensive Demonstration 

Study (CDS) that characterizes the source water baseline in the vicinity of the intake structure(s), 

characterizes operation of the cooling water intake(s), and confirms that the design and 

construction technology(ies) and/or operational measures proposed and/or implemented at the 

CWIS meet the applicable national performance standards specified in § 125.94. The required 

components of the CDS that a Phase II existing facility must submit are dependent on the 

compliance alternative selected. Facilities that choose to meet the performance standards under 

the compliance alternative in § 125.94(a)(1)(i) are not require to submit a CDS. Facilities that 

choose to meet the performance standards under the compliance alternative in § 125.94(a)(1)(ii) 

are required to only submit a CDS for the entrainment requirements, if applicable. Facilities that 

choose to meet the performance standards under the compliance alternative in § 125.94(a)(4) are 
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required to submit only the Technology Installation and Operation Plan and the Verification 

Monitoring Plan. Facilities that are required to meet only impingement mortality reduction 

requirements in § 125.94(b)(1) are required to submit only a CDS for the impingement mortality

reduction requirements. The CDS includes the following data requirements.

1. Proposal for information collection that describes the proposed and/or implemented 

technology(ies) and/or operational measures to be evaluated in the study; describes any

historical studies that are proposed to be used in the study; summarizes any past, ongoing, 

or voluntary consultation with fish and wildlife management agencies (including a copy

of written comments received as a result of such consultation); and provides a sampling 

plan for any new field studies proposed to be conducted;

2. Source waterbody flow information to support the determination of whether the facility is 

designed to withdraw more than 5% of the annual mean flow for intakes located in 

freshwater rivers/streams, and a description of the waterbody thermal stratification for 

intakes located in lakes or reservoirs to show that the total design intake flow will not 

disrupt the natural thermal stratification or turnover pattern (where present) of the source 

water in a way that adversely impacts fisheries;

3. Impingement Mortality and/or Entrainment Characterization Study that provides 

information to support the development of a calculation baseline for evaluating 

impingement mortality and/or entrainment and to characterize current impingement 

mortality and/or entrainment;

4. Design and Construction Technology Plan and a Technology Installation and Operation 

Plan that includes technology and compliance assessment information that explains the 

design and construction technologies and operational measures that are in place or have 

been selected to reduce impingement mortality and/or entrainment; calculates the 

reduction in impingement mortality and entrainment that would be achieved by the 

selected technologies and operational measures; and demonstrates that the location, 

design, construction and capacity of the CWIS have been selected to reflect BTA at the 

site;

5. Verification monitoring plan that describes the monitoring that will be used to verify the 

full-scale performance of the proposed or implemented technologies and/or operational 

measures.

Additional data requirements apply to facilities that choose to request a site-specific 

determination of BTA for minimizing adverse environmental impact i.e., with the compliance 

alternative in § 125.94(a)(5)(i) or (ii). Specific data requirements that would apply to such a 

facility include:

1. Comprehensive cost evaluation study that documents the cost of implementing the design 

and construction technologies and/or operational measures to meet the applicable 

performance standards and a demonstration that the cost is significantly greater than those 

costs considered by the Administrator;

2. Benefits valuation of reducing impingement and entrainment that uses a comprehensive 

methodology to fully value the impacts of impingement mortality and/or entrainment at 

the site and the benefits achievable by compliance with the applicable requirements;
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3. A narrative description of any non-monetized benefits that would be realized at the 

facility if it were to meet the performance standards and a qualitative assessment of their 

magnitude and significance;

4. Site-specific technology plan that describes the design and operation of all design and 

construction technologies and/or operational measures that the facility has selected; 

demonstrates the efficacy of the technologies; and demonstrates that the design and 

construction technologies and/or operational measures selected would reduce 

impingement mortality and/or entrainment to the extent necessary to satisfy the 

requirements of § 125.94; and includes design calculations, drawings, and estimates to 

support the plan.

In addition to the information requirements of the NPDES permit application, NPDES permits 

normally specify monitoring and reporting requirements to be conducted by the permitted entity. 

Monitoring must be conducted in accordance with the Verification Monitoring Plan required by

§ 125.95(b)(7) and the Technology Installation and Operation Plan required by § 125.95(b)(4)(ii), 

and any additional monitoring specified by the Director to demonstrate compliance with the 

applicable requirements of § 125.94. The results of each facility’s monitoring efforts are to be 

reported to the permitting Director every two years.

Finally, facilities are required to maintain records of all submitted documents, supporting 

materials, and monitoring results for at least 3 years (or as directed by the Director). Facilities are 

also required to perform a verification study to demonstrate that they are meeting the required 

level of impingement mortality and entrainment reduction, as appropriate.

Authorized State Directors are required to review all materials submitted to them by the facilities 

within the scope of the regulation, confirm their compliance with the Section 316(b) Phase II 

Existing Facility rule, and issue NPDES permits with appropriate conditions to minimize adverse 

environmental impact associated with the use of the facilities’ CWISs.

As suggested, the primary users of the data collected under the 316(b) Phase II Existing Facility

rule are the States authorized to administer the NPDES permitting program, and EPA. Other 

government agencies, both at the State and Federal level, as well as public interest groups, 

private companies, and many individuals also use the data.

The 316(b) Phase II rule was signed on February 16, 2004. Industry and environmental groups, 

and a number of states filed legal challenges to the rule. Several issues were heard by the Second 

Circuit’s Court of Appeals, which issued a decision on January 25, 2007 remanding portions of 

the rule (see Riverkeeper, Inc. v. U.S. EPA, No. 04-6692-ag(L) [2d Cir. Jan. 25, 2007]). EPA 

subsequently suspended the Phase II rule on July 9, 2007 and directed permit writers to continue 

to issue permits with 316(b) requirements developed using the permit writer’s best professional 

judgment (BPJ). Industry groups petitioned and were granted certiorari from the Supreme Court, 

which issued a decision on April 1, 2009 (Entergy Corp. v. Riverkeeper, Inc., No. 07-588). EPA 

is currently in the process of developing a revised rule for existing facilities. 
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EPA believes that the burden estimated in this ICR is likely to represent an upper bound on the 

burden that the public would incur in complying with BPJ-based permitting requirements for 

cooling water intake structures as large existing power plants over the next three years. EPA will 

submit a revised ICR with the new rule that reflects the specific requirements in the new rule. 

The revised ICR will replace this one when the new rule is promulgated.

During the 3 years covered by this ICR (which correspond to years 7–9 after rule promulgation) 

the information collection required by the rule will involve responses from an estimated total of 

506 facilities and 42 States and Territories and cost approximately $223 million (including 

operation and maintenance costs), with an annual average of 514 respondents, 1,023,521 burden 

hours, and a cost $74 million per year (for additional detail, see Section 6 and Exhibit A.11 in 

Appendix A).

2. Need for and Use of the Collection

2a. Need/Authority for the Collection

The following sections describe the need for this information collection and the legal authority

under which this information will be collected.

2a(i). Need for the Collection

The information requirements of the 316(b) Phase II Existing Facility rule are necessary to ensure 

that Phase II existing facilities are complying with the CWA’s provisions to establish BTA for 

CWISs, and thereby minimizing adverse environmental impact resulting from impingement and 

entrainment losses due to the withdrawal of cooling water.

2a(ii). Authority for the Collection

Section 316 was included in the Federal Water Pollution Control Act of 1972 for the express 

purpose of regulating thermal discharges and to address the environmental impact of CWISs. 

Moreover, Section 316(b) is the only provision in the CWA that focuses exclusively on water 

intake. Section 316(b) provides that, “[a]ny standard established pursuant to [CWA Section 301] 

or [CWA Section 306] and applicable to a point source shall require that the location, design, 

construction, and capacity of CWISs reflect the BTA for minimizing adverse environmental 

impact.” The requirements of Section 316(b) are closely linked to several of the core elements 

(e.g., Sections 301, 304, 306 and 402) of the NPDES permit program established under the 

CWA. Conditions implementing Section 316(b) are and will continue to be included in NPDES 

permits issued under Section 402 of the CWA.

2b. Practical Utility/Users of the Data

The 316(b) Phase II Existing Facility rule includes both information that must be submitted to 

permitting authorities and data that must be collected and maintained on-site by the facility. Each 

Phase II existing facility maintains facility-level records of the characterization data, plans, 
June 2010 6

measurements, diagrams, and calculations submitted to the Directors, as well as the analytical 

results of monitoring actions. Facilities could use the data to:

 Characterize environmental conditions and monitor existing CWIS performance;

 Determine appropriate design and construction technologies or operational measures; 

and/or 

 Monitor the performance of design and construction technologies or operational 

measures.

Permit writers will also use these data to verify that the appropriate compliance actions are 

selected and implemented. Under the 316(b) Phase II Existing Facility rule, EPA and State 

Directors are to maintain records compiled from the regulated facilities. Much of the basic 

information obtained from the NPDES permit application is stored in EPA’s Permit Compliance 

System (PCS) database —in the process of being replaced by the Integrated Compliance 

Information System (ICIS-NPDES). PCS and ICIS-NPDES are used to track permit limits, 

permit expiration dates, monitoring data, and other data, and provide EPA with a nationwide 

inventory of permit holders. 

EPA Headquarters uses the information contained in PCS and ICIS-NPDES databases to develop 

reports on permit issuance, backlog, and compliance rates. The Agency also uses the information 

to respond to public and congressional inquiries, develop and guide its policies, formulate its 

budgets, assist States in acquiring authority for permitting programs, and manage the NPDES 

program to ensure national consistency in permitting. States can use this initial permit 

information along with the additional documentation and the bi-annual reports to track facility

monitoring, compliance violations, and enforcement activities.

Permittees must reapply for NPDES permits every 5 years. The re-application process is the 

primary mechanism for obtaining up-to-date and new information concerning on-site conditions. 

Although under the 316(b) Phase II Existing Facility rule, existing facilities provide data from 

self-monitoring activities in bi-annual reports to the permitting authority, these reports are a less 

comprehensive information-gathering process than the permit application process. EPA and 

States will use re-application data to identify new species at risk or other potential concerns that 

could lead the permit writers to take the following actions:

 Specify additional permit limitations;

 Assess compliance with applicable standard requirements; or

 Place appropriate special conditions in permits.

Environmental and citizen groups are expected to use the data collected under the 316(b) Phase II 

Existing Facility rule to independently assess impingement and entrainment rates for affected 

waterbodies in their location. In addition, the data will be useful for the scientific community for 

assessing the impact of CWISs on recreational and commercial fisheries productivity and aquatic 

ecosystem health.
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3. Nonduplication, Consultations, and Other Collection Criteria

The following sections verify and affirm that this ICR satisfies the Office of Management and 

Budget’s (OMB) data-collection guidelines, has public support, and does not duplicate another 

collection.

3a. Nonduplication

Given that the Phase II Existing Facility rule applies to existing facilities, current data sources 

may already exist for the information required under the rule. Therefore, it was important that 

EPA review existing data sources to identify currently available information on entities subject to 

Section 316(b) regulation and to ensure that the data requested by the rule are not otherwise 

accessible. Data sources reviewed included data collected by offices within EPA; data, reports, 

and analyses published by other Federal agencies; reports and analyses published by industry; 

and publicly available financial information compiled by government and private organizations. 

From this effort, EPA has determined that the information collection and reporting requirements 

considered in this ICR are not contained or duplicated in other routinely collected documents or 

reports.

3b. Public Notice Required Prior to ICR Submission to OMB

In compliance with the 1995 Paperwork Reduction Act (PRA), any agency developing a nonrule-related ICR must solicit public comments before submitting the ICR to OMB. These 

comments, which are used partly to determine realistic burden estimates for respondents, must be 

considered when completing the Supporting Statement that is submitted to OMB.

This ICR was published in the Federal Register on XXXX XX, 2010. The notice included a 

request for comments on the content and impact of these information collection requirements on 

the regulated community. EPA received no comments on this ICR.

3c. Consultations

EPA will finalize the requirements addressed in this ICR after its publication in the Federal 

Register to allow for comments from the public and the regulated community. No formal 

consultations with persons outside EPA have occurred since the original 316(b) Phase II Existing 

Facility rule and its corresponding ICR were published in 2004. However, the Agency does 

consider, and act on, the comments it receives in its daily dealings with the public and with the 

regulated community. EPA Headquarters staff responsible for program oversight in the 

applicable program areas were contacted to provide revised information and data for this ICR.

3d. Effects of Less Frequent Collection

EPA has concluded that less frequent data collection may fail to identify in a timely manner 

adverse environmental impact resulting from the operation of existing CWISs. In addition, less 

frequent collection would also hinder the ability of EPA, States, and facility operators to take 

advantage of technological improvements in impingement and entrainment technologies as they

become available, or to track long-term trends.
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3e. General Guidelines

The information collection requirements of the 316(b) Phase II Existing Facility rule are in 

accordance with the PRA guidelines at Title 5 of the Code of Federal Regulations (CFR) 

1320.5(d)(2). Requests for supplemental information for the purposes of emergency response or 

enforcement activities are exempt from the PRA requirements.

3f. Confidentiality

Applications for an NPDES permit may contain confidential business information. However, 

EPA does not consider the specific information being requested by the 316(b) Phase II Existing 

Facility rule to be typical of confidential business or personal information. If a respondent does 

consider this information to be of a confidential nature, the respondent may request that such 

information be treated as such. All confidential data will be handled in accordance with 40 CFR 

§ 122.7, 40 CFR Part 2, and EPA's Security Manual Part III, Chapter 9, dated August 9, 1976.

3g. Sensitive Questions

The Section 316(b) Phase II Existing Facility rule does not require respondents to divulge 

information pertaining to private or personal information, such as sexual behavior or religious 

beliefs. Therefore, this section is not applicable.

4. The Respondents and the Information Requested

4a. Respondents/SIC/NAICS

The applicability criteria of the 316(b) Phase II Existing Facility rule at § 125.91 define an 

existing facility as a Phase II existing facility subject to this regulation if it is a point source that 

uses or proposes to use a CWIS, both generates and transmits electric power or generates electric 

power but sells it to another entity for transmission, has at least one CWIS that uses at least 25 

percent of the water it withdraws from waters of the U.S. (measured on an average annual basis) 

for cooling purposes, and has a design intake flow of 50 MGD or more. Use of a CWIS includes 

obtaining cooling water by any sort of contract or arrangement with an independent supplier (or 

multiple suppliers) of cooling water if the supplier or suppliers withdraw(s) water from waters of 

the United States. Use of cooling water does not include obtaining cooling water from a public 

water system or use of treated effluent that otherwise would be discharged to a water of the 

United States.

Respondents include existing electric power generating facilities. Facilities in the traditional 

steam electric utility category are classified under Standard Industrial Classification (SIC) codes 

4911 and 493, while nonutility power producers are classified under the major code that 

corresponds to the primary purpose of the facility (e.g., the primary code may be SIC 49 if the 

primary purpose of the facility is to generate electricity). Nonutility power producers affected by

the Phase II Existing Facility rule are anticipated to be classified under SIC 49 (i.e., their primary

purpose is to generate electricity); nonutility power producers classified under other SIC codes 
June 2010 9

(i.e., whose primary purpose is not generating electricity) are not 316(b) Phase II existing 

facilities. SIC and NAICS Codes are provided in Table 1.

Table 1. Industry Categories and SIC Codes for 316(b) Phase II Existing Facility Rule

Respondent Industry Categories SIC Codes NAICS Codes

Traditional Steam Electric Utilities SIC codes 4911 and 493 221112, 221113, 

221119, 221121, 

221122

Steam Electric Nonutility Power Producers: 

Nonindustrial

SIC Major Group 49

4b. Information Requested

The following sections provide details on data items requested and associated activities that the 

316(b) Phase II Existing Facility rule requires respondents to provide in their application. The 

two principal respondent categories are Phase II existing facilities subject to the rule and NPDES 

program Directors (i.e., States and Territories authorized under CWA Section 402(b) to 

administer the NPDES permit program, and EPA Regional offices). There are currently 46 States 

and the Virgin Islands authorized under CWA Section 402(b) to implement the NPDES permit 

program.

Information requirements for Phase II existing facilities will differ depending on the compliance 

alternative selected by the applicant. As discussed in Section 1, five compliance alternatives are 

available to an existing facility. Certain information requirements are applicable to all Phase II 

existing permitted facilities; other information requirements apply on the basis of the compliance 

alternative selected.

4b(i). Data Items, Including Record Keeping Requirements

Data items required by the 316(b) Phase II Existing Facility rule are gathered for either record 

keeping or reporting purposes. There are several data items that are collected only during the 

year(s) before the beginning of each permit cycle and others that are required to be collected on 

an annual basis. A discussion of all reporting requirements follows below.

Reporting Requirements

The Section 316(b) Phase II Existing Facility rule does not require Directors to prepare or submit 

any reports beyond what is currently required of them under the NPDES program. However, 

Directors need to review, maintain records of, and make permitting determinations on the basis 

of all documents and reports submitted to them by Phase II existing facilities.

Phase II existing facilities must report with their application the information required under 

§ 125.95 and paragraphs (r)(2), (3), and (5) of § 122.21. At the time a Phase II existing facility

submits its NPDES permit renewal application (approximately 180 days before expiration of its 

current permit, in accordance with § 122.21(d)(2)), it must submit information demonstrating 

that it is employing, or will employ BTA for its CWIS to minimize adverse environmental 

impact in compliance with Section 316(b) of the CWA. Three types of information are required 

to be included in the NPDES permit applications for all Phase II existing facilities:
June 2010 10

1. Source water physical data, as required under § 122.21(r)(2). Source water information is 

required to evaluate potential impact to the waterbody in which the intake structure is 

placed. Typically, intake structures are located offshore, at the shoreline, or at the end of 

an approach intake canal. The intake structure affects different species or life stages 

depending on its location in the source water and the source water type. In addition, the 

proximity of the intake structures to sensitive aquatic ecological areas might result in 

potential environmental impact.

2. CWIS data, as required under § 122.21(r)(3). Facilities are required to submit information

on the intake structure design and operation and the facility’s water balance to evaluate 

the potential for impingement and entrainment of aquatic organisms. Information on the 

design of the intake structure and its location in the water column allows EPA to evaluate 

which species or life stages would potentially be subject to impingement and entrainment. 

Information on the operation of the intake structure and a diagram of the facility’s water 

balance would be used to identify the proportion of intake water used for cooling, makeup, and process water and to evaluate whether the effects of the intake would be 

continuous, intermittent, or seasonal. The water balance diagram also would provide a 

picture of the total flow in and out of the facility.

3. Cooling water system data, per the requirements at § 122.21(r)(5). Facilities are required 

to submit cooling water system data for the purpose of evaluating the relationship 

between the cooling water system and the associated intake(s) and determining whether 

the facility uses at least 25 percent of the water it withdraws for cooling purposes.

Depending on the compliance alternative selected, a facility may also need to conduct a CDS as 

stipulated at § 125.95(b)(1) through § 125.95(b)(7) as applicable. The CDS is necessary to 

characterize the source water baseline in the vicinity of the intake, characterize the operation of 

the cooling water intake, and confirm that the design and construction technology(ies) and/or 

operational measures proposed and/or implemented at the intake meet the applicable 

requirements of § 125.94.

The CDS includes the following components:

1. A proposal for information collection [§ 125.95 (b)(1)];

2. Source waterbody flow information [§ 125.95 (b)(2)];

3. An Impingement Mortality and/or Entrainment Characterization Study [§ 125.95 (b)(3)];

4. Technology and compliance assessment information [§ 125.95 (b)(4)];

5. Information to support site-specific determination of BTA for minimizing adverse 

environmental impact [§ 125.95 (b)(6)]; and

6. A verification monitoring plan [§ 125.95 (b)(7)].

In accordance with § 125.95(a)(2), the facility must submit any applicable portions of the CDS, 

except for the Proposal for Information Collection, and the information required at 40 CFR 

122.21(r)(2), (3) and (5), with the NPDES permit application. The Proposal for Information 

Collection must be submitted prior to the start of any information collection to support other 

components of the CDS
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The specific requirements of each component of the CDS are detailed under the Respondent 

Activities section below.

Annual Reporting Requirements

In addition to the one-time reporting requirements, facilities are required to provide the following 

information to the Director in bi-annual status report:

 Monitoring records as required by § 125.97(a) and § 125.97(b).

Record Keeping Requirements

All operators of Phase II existing facilities are required to keep records and to report information 

and data to the permitting authority to show compliance with any requirements to which they are 

subject. Records are required to be maintained for a period of at least 3 years from the date of 

permit issuance unless extended at the request of the Director. Each operator is required to 

maintain records of:

 All data used to complete the permit application and show compliance with the 

requirements

 Any supplemental information developed under § 125.95

 Any compliance monitoring data submitted under § 125.96

4b(ii). Respondent Activities 

As mentioned above, respondents include both Phase II existing facilities and NPDES permit 

program Directors. Their information collection activities are described below.

Permit Application Activities

All facilities will need to perform start-up activities such as reading the rule, planning for the 

implementation of the rule, and training staff to perform various tasks necessary to comply with 

the rule. Activities performed during the permit application process are performed only once 

during each ICR period. However, these application activities are repeated again during the fifth 

year of the permit cycle as part of the permit renewal process.

A. General Information

Phase II existing facilities must perform several data gathering activities as part of the permit 

application process. Under the 316(b) Phase II Existing Facility rule, all facilities are required to 

gather application information as specified at 40 CFR 122.21(r) so that the Director can evaluate 

the potential impact to the waterbody in which the intake structure is located. The information 

collected under 40 CFR 122.21(r) includes source water physical data, CWIS data, and cooling 

water system data.

Activities related to source water physical data include: [40 CFR 122.21(r)(2)]
June 2010 12

 Describing the physical configuration of the source waterbody where each CWIS is 

located, including areal dimensions, depths, salinity and temperature regimes and 

providing other documentation that supports the determination of waterbody type;

 Preparing scaled drawings showing the physical configuration of the source waterbody;

 Characterizing and documenting the hydrological and geomorphological features of the 

source waterbody;

 Conducting physical studies to determine the intake’s area of influence within the waterbody and summarizing the results of such studies (including a description of methods 

used); 

 Preparing locational maps; and

 Maintaining copies of these documents as well as copies of any information used in their 

development for a period of 3 years after submittal.

Activities related to the report on cooling water intake structure data include: [40 CFR 

122.21(r)(3)]

 Preparing a narrative description of the configuration of each CWIS and its location 

within the waterbody and in the water column;

 Measuring and documenting the latitude and longitude of each CWIS in degrees, minutes, 

and seconds;

 Developing a narrative that describes the operation of each CWIS, including design 

flows, daily hours of operation, number of days of the year in operation, and seasonal 

changes, if applicable;

 Developing a flow distribution and water balance diagram for the facility that includes all 

sources of water to the facility, recirculating flows, and discharges

 Creating engineering drawings and locational maps in support of the CWIS descriptions 

mentioned; and

 Maintaining copies of these documents as well as copies of any information used in their 

development for a period of 3 years after submittal.

Activities related to the report of the Phase II existing facility cooling water system data include: 

[40 CFR 122.21(r)(5)]

 Preparing a narrative description of the operation of each of the facility’s cooling water 

systems, relationship to the CWIS(s), proportion of design flow that is used in the system, 

number of days of the year in operation, and seasonal changes, if applicable;

 Producing the necessary engineering calculations and supporting data to support the 

narrative description; and

 Maintaining a copy of the description and information required to support its 

development for 3 years after submittal.
June 2010 13

B. Comprehensive Demonstration Study (CDS) Requirements

As previously discussed, depending on the compliance alternative selected, facilities may need to 

complete all or portions of the CDS. The specific reporting requirements for each component of 

the CDS are discussed below.

Proposal for Information Collection

The facility must develop and submit a proposal for the collection of information to support the 

CDS. In accordance with § 125.95(b)(1), this activity includes:

 Developing a description of the proposed and/or implemented technologies and/or 

operational measures to be evaluated in the CDS [§ 125.95(b)(1)(i)];

 Developing a list and description of any historical studies characterizing impingement 

and entrainment and/or the physical and biological conditions in the vicinity of the 

intakes and their relevance to the proposed CDS. If the facility proposes to use existing 

source waterbody data, the facility must demonstrate the extent to which the data are 

representative of current conditions, that existing data are sufficient to develop a 

scientifically valid estimate of impingement and entrainment at the site, and that the data 

were collected using appropriate quality assurance/quality control procedures 

[§ 125.95(b)(1)(ii)];

 Developing a summary of any past or ongoing consultation with appropriate Federal, 

State, and Tribal fish and wildlife agencies that is relevant to the CDS and providing a 

copy of any written comments received [§ 125.95(b)(1)(iii)];

 Developing a sampling plan for any new field studies that the facility proposes to 

conduct. The sampling plan must document all methods and quality assurance procedures 

for sampling and data analysis. The proposed sampling and data analysis methods must 

be appropriate for a quantitative survey and must take into account the methods used in 

other studies performed in the source waterbody. The sampling plan must include a 

description of the study area (including the area of influence of the CWIS), and provide a 

taxonomic identification of the sampled or evaluated biological assemblages (including 

all life stages of fish and shellfish) [§ 125.95 (b)(1)(iv)];

 Maintaining records of all materials used to develop the proposal for a period of 3 years 

after submittal.

Source Waterbody Flow Information

As part of the CDS, facilities with intakes located on freshwater rivers/streams or lakes/reservoirs 

must also submit source waterbody flow information as required under § 125.95(b)(2). This 

includes:

 If the CWIS is located in a freshwater river or stream, the facility must provide the annual 

mean flow of the waterbody and any supporting documentation and engineering 

calculations to support the analysis of whether the facility’s design intake flow is greater 

than 5 percent of the mean annual flow of the river or stream for purposes of determining 

applicable performance standards under paragraph § 125.95(b). Representative historical 

data (from a period of time up to 10 years, if available) must be used [§ 125.95(b)(2)(i)]; 
June 2010 14

 If the CWIS is located in a lake (other than one of the Great Lakes) or a reservoir and the 

facility proposes to increase its design intake flow, the facility must provide a narrative 

description of the waterbody thermal stratification and any supporting documentation and

engineering calculations to show that the total design intake flow after the increase will 

not disrupt the natural thermal stratification and turnover pattern in a way that adversely

impacts water quality or fisheries including the results of any consultations with Federal, 

State, or Tribal fish or wildlife management agencies [§ 125.95(b)(2)(ii)]; and

 The facility must maintain records of all pertinent documents for a period of 3 years after 

submittal.

Impingement Mortality and/or Entrainment Characterization Study

As part of the CDS, the facility must also perform an Impingement Mortality and/or Entrainment 

Characterization Study to provide information to support the development of a calculation 

baseline for evaluating impingement mortality and entrainment and to characterize current 

impingement and entrainment. Under § 125.95(b)(3), the following activities are required:

 Taxonomic identification of those species of fish and shellfish and their life stages that 

are in the vicinity of the intake and are most susceptible to impingement and entrainment 

[§ 125.95(b)(3)(i)];

 A characterization of those species of fish and shellfish and any species protected under 

Federal, State, or Tribal Law (including threatened or endangered species) identified 

pursuant to § 125.95(b)(3)(i), including a description of the abundance and 

temporal/spatial characteristics in the vicinity of the intake, based on sufficient data to 

characterize annual, seasonal and daily variations in impingement mortality and 

entrainment (e.g., related to climate/weather differences, spawning, feeding and watercolumn migration) [§ 125.95(b)(3)(ii)];

 Documentation of current impingement mortality and entrainment of all life stages of fish 

and shellfish, and any species protected under Federal, State, or Tribal Law (including 

threatened or endangered species) identified pursuant to § 125.95(b)(3)(i) and an estimate 

of impingement mortality and entrainment under the calculation baseline. The 

documentation may include historical data that are representative of the current operation 

of the facility and of biological conditions at the site. Impingement mortality and 

entrainment samples to support the calculations required in paragraph 

§ 125.95(b)(4)(i)(C) and (b)(5)(iii) must be collected during periods of representative 

operational flows for the intake, and the flows associated with the samples must be 

documented [§ 125.95(b)(3)(iii)]; and

 Maintenance of a copy of the study and the materials required to produce it for 3 years 

after submittal.

Technology and Compliance Assessment Information

If the facility chooses to use design and construction technologies and/or operational measures, in 

whole or in part, to meet the requirements of § 125.94, the facility must submit a Design and

Construction Technology Plan and a Technology Installation Operation Plan. Under 

§ 125.95(b)(4)(i), the facility is required to include the following in the Design and Construction 

Technology Plan: 
June 2010 15

 The capacity utilization rate for the facility and supporting data (including the average 

annual net generation of the facility (in MWh) measured over a 5-year period (if 

available) of representative operating conditions and the total net capability of the facility

(in MW)) and underlying calculations, and an explanation of the technologies and 

operational measures in place or selected, in accordance with § 125.95 (b)(4)(i);

 A narrative description of the design and operation of all design and construction 

technologies and/or operational measures (existing or proposed), including fish-handling 

and return systems, that the facility has in place or will use to meet the requirements to 

reduce impingement mortality of those species expected to be most susceptible to 

impingement, and information that demonstrates the efficacy of the technology or 

operational measures for those species [§ 125.95(b)(4)(i)(A)];

 A narrative description of the design and operation of all design and construction 

technologies and/or operational measures (existing or proposed) that the facility has in 

place or will use to meet the requirements to reduce entrainment of those species 

expected to be the most susceptible to entrainment, and information that demonstrates the 

efficacy of the technologies and/or operational measures for those species [§ 125.95 

(b)(4)(i)(B)];

 Calculations of the reduction in impingement mortality and entrainment of all life stages 

of fish and shellfish that would be achieved by the technologies and/or operational 

measures the facility has selected on the basis of the Impingement Mortality and/or 

Entrainment Characterization Study. In determining compliance with the requirements to 

reduce impingement mortality or entrainment, the facility must first determine the 

calculation baseline upon which to assess the total reduction in impingement mortality

and entrainment. Reductions in impingement mortality and entrainment from this 

baseline as a result of any design and construction technologies and/or operational 

measures already implemented at the facility should be added to the reductions expected 

to be achieved by any additional design and/or construction technologies that will be 

implemented. Facilities that recirculate a portion of their flow, but do not reduce flow 

sufficiently to satisfy the compliance option in § 125.94(a)(1)(i) may take into account the 

reduction in impingement mortality and entrainment associated with the reduction in flow 

when determining the net reduction associated with existing technology and/or 

operational measures. This estimate must include a site-specific evaluation of the 

suitability of the technologies based on the species that are found at the site, and/or 

operational measures and may be determined on the basis of representative studies (i.e., 

studies that have been conducted at CWISs located in the same waterbody type with 

similar biological characteristics) and/or site-specific technology prototype or pilot 

studies [§ 125.95(b)(4)(i)(C)];

 Design calculations, drawings, and estimates to support the descriptions required under 

§ 125.95(b)(4)(i)(A) and (B) [§ 125.95 (b)(4)(i)(D)]; and

 Maintenance of records of all materials used to develop the design and construction 

technology plan for a period of 3 years after submittal.

Under § 125.95(b)(4)(ii), the facilities are required to include the following in the Technology

Installation and Operation Plan:
June 2010 16

 A schedule for the installation and maintenance of any new design and construction 

technologies. Any downtime of generating units to accommodate installation and/or 

maintenance of these technologies should be scheduled to coincide with otherwise 

necessary downtime (e.g., for repair, overhaul, or routine maintenance of the generating 

units) to the extent practicable. Where additional downtime is required, the facility may

coordinate scheduling of this downtime with the North American Electric Reliability

Council and/or other generators in the facility’s area to ensure that impacts to reliability

and supply are minimized, as required under § 125.95(b)(4)(ii)(A);

 A list of operational and other parameters to be monitored, and the location and frequency

that the facility will monitor them, as required under § 125.95(b)(4)(ii)(B);

 A list of activities the facility will undertake to ensure to the degree practicable the 

efficacy of installed design and construction technologies and operational measures, and 

the facility’s schedule for implementing them, as required under § 125.95(b)(4)(ii)(C);

 A schedule and methodology for assessing the efficacy of any installed design and 

construction technologies and operational measures in meeting applicable performance 

standards or site-specific requirements, including an adaptive management plan for 

revising design and construction technologies, operational measures, operation and 

maintenance requirements, and/or monitoring requirements if the facility’s assessment 

indicates that applicable performance standards or site-specific requirements are not 

being met, as required under § 125.95(b)(4)(ii)(D); and 

 If a facility chooses the compliance alternative in § 125.94(a)(4), documentation that the 

appropriate site conditions in § 125.99(a) or (b) exist at the facility, as required under 

§ 125.95(b)(4)(ii)(E).

Information to Support Site-specific Determination of Best Technology Available for 

Minimizing Adverse Environmental Impact

If the facility chooses to request a site-specific determination of BTA, the facility must provide, 

as required under § 125.94(b)(6), the following additional information with its application:

 Comprehensive Cost Evaluation Study. The facility must perform and submit, in 

accordance with § 125.95(b)(6)(i), the results of a comprehensive cost evaluation study

that includes:

- Engineering cost estimates in sufficient detail to document the costs of 

implementing design and construction technologies and/or operational measures 

at the facility that would be needed to meet the performance requirements in 

§ 125.94(b) [§ 125.95(b)(6)(i)(A)];

- A demonstration that the costs documented above significantly exceed those 

considered by the Administrator for a facility in establishing the applicable 

performance standards [§ 125.95(b)(6)(i)(B)]; and

- Engineering cost estimates in sufficient detail to document the costs of 

implementing the design and construction technologies and/or operational 

measures in the facility’s Site-Specific Technology Plan developed in accordance 

with paragraph § 125.95(b)(6)(iii) [§ 125.95(b)(6)(i)(C)]
June 2010 17

 Benefits Valuation Study. If the facility is seeking a site-specific determination of BTA 

for minimizing adverse environmental impact because of costs significantly greater than 

the benefits of complying with the otherwise applicable requirements of § 125.94(b) and 

(c) at the site, the facility must prepare a Benefits Valuation Study using a comprehensive 

methodology to fully value the impacts of impingement mortality and entrainment at the 

site and the benefits achievable by compliance with the applicable requirements of 

§ 125.94. In addition to the valuation estimates, the benefit study must include the 

following:

- A description of the methodology(ies) used to value commercial, recreational, and 

ecological benefits (including any non-use benefits, if applicable) 

[§ 125.95(b)(6)(ii)(A)];

- Documentation of the basis for any assumptions and quantitative estimates, 

including a determination of entrainment survival at the facility (based on a study

approved by the Director) [§ 125.95(b)(6)(ii)(B)];

- An analysis of the effects of significant sources of uncertainty on the results of the 

study [§ 125.95(b)(6)(ii)(C)]; 

- If requested by the Director, a peer review of the items the facility submitted in 

the Benefits Valuation Study. The facility must choose the peer reviewers with the 

concurrence of the Director who may consult with EPA and Federal, State, and 

Tribal fish and wildlife management agencies with responsibility for fish and 

wildlife potentially affected by facility’s CWIS. Peer reviewers must have 

appropriate qualifications depending upon the materials to be reviewed 

[§ 125.95(b)(6)(ii)(D)]; and

- A narrative description of any non-monetized benefits that would be realized at 

the site if the facility were to meet the performance standards and a qualitative 

assessment of magnitude and significance of the benefits [§ 125.95(b)(6)(ii)(E)].

 Site-Specific Technology Plan. On the basis of the results of the Comprehensive Cost 

Evaluation Study and the Benefits Valuation Study, the facility must submit a SiteSpecific Technology Plan to the Director for review and approval. The plan must contain 

the following information: 

- A narrative description of the design and operation of all existing and proposed 

design and construction technologies and/or operational measures that the facility

has selected in accordance with § 125.94(a)(5) [§ 125.95(b)(6)(iii)(A)];

- An engineering estimate of the efficacy of the proposed and/or implemented 

design and construction technologies or operational measures. This estimate must 

include a site-specific evaluation of the suitability of the technologies or 

operational measures for reducing impingement mortality and/or entrainment (as 

applicable) of all life stages of fish and shellfish based on representative studies 

(e.g., studies that have been conducted at CWISs located in the same waterbody

type with similar biological characteristics) and, if applicable, site-specific 

technology prototype or pilot studies. [§ 125.95(b)(6)(iii)(B)]; 

- A demonstration that the proposed and/or implemented design and construction 

technologies and/or operational measures achieve an efficacy that is as close as 

practicable to the applicable performance standards of § 125.94(b) without 
June 2010 18

resulting in costs significantly greater than either the costs considered by the 

Administrator for a similar facility in establishing the applicable performance 

standards, or as appropriate, the benefits of complying with the applicable 

performance standards at the facility [§ 125.95(b)(6)(iii)(C)]; and

- Design and engineering calculations, drawings, and estimates prepared by a 

qualified professional to support the descriptions required above 

[§ 125.95(b)(6)(iii)(D)]. 

 Maintain all records and documentation of site specific studies conducted for a period of 

at least 3 years after submittal.

Verification Monitoring Plan

As part of the CDS, the facility must prepare a plan to conduct, at a minimum, 2 years of 

monitoring to verify the full-scale performance of the proposed or implemented design and 

construction technologies, operational measures. As stipulated in § 125.95 (b)(7), the verification 

study must begin once the technologies and/or operational measures are implemented and 

continue for a period of time that is sufficient to demonstrate that the facility is meeting the 

national performance standards of § 125.94(b) or site-specific requirements developed pursuant 

to 125.94(a)(5).

The plan must provide the following:

 Description of the frequency and duration of monitoring, the parameters to be monitored, 

and the basis for determining the parameters and the frequency and duration for 

monitoring. The parameters selected and duration and frequency of monitoring must be 

consistent with any methodology for assessing success in meeting applicable performance 

standards in your Technology Installation and Operation Plan [§ 125.95(b)(7)(i)];

 A proposal on how naturally moribund fish and shellfish that enter the CWIS would be 

identified and taken into account in determining compliance with the performance 

standards at § 125.94 [§ 125.95(b)(7)(ii)];

 A description of the information to be included in a bi-annual status report to the Director 

[§ 125.95(b)(7)(iii)]; and

 The facility must maintain all documentation supporting the verification monitoring plan 

for a period of at least 3 years.

Annual Activities

A. Biological Monitoring

All Phase II existing facilities, as appropriate to the compliance alternative selected, would need 

to perform monitoring in accordance with the Technology Installation and Operation Plan, the 

Verification Monitoring Plan, and any additional monitoring specified by the Director. The 

facility must follow the monitoring frequencies identified in the permit after the initial permit 

issuance. After that time, the Director may modify the program based on changes in physical or 

biological conditions in the vicinity of the cooling water intake structures.
June 2010 19

B. Bi-Annual Status Report

All Phase II existing facilities subject to the 316(b) Phase II Existing Facility rule are required to 

prepare and submit a bi-annual status report that details compliance with requirements set by the 

rule and with any additional provisions specified within the permit. Preparation of the report 

requires:

 Compiling biological monitoring records for each CWIS and other information. The other 

information may include operation and maintenance records, summaries of adaptive 

management activities, or any other information that is relevant to determining 

compliance with the terms of the facility’s Technology Operation and Installation Plan.

 Maintaining a copy of the report for a period of 3 years after its submission.

Director Activities

NPDES program Directors will act to ensure the implementation of the section 316(b) 

requirements as established under § 125.98. Section 316(b) requirements are implemented for a 

facility through an NPDES permit. Directors will be involved in reviewing application studies 

and developing permit conditions.

Following receipt of a permit application, under the section 316(b) Phase II Rule requirements , 

the Director will conduct the following activities as described in § 125.98(a) and (b) and below.

Application Activities

The Director must determine which of the standards specified in § 125.94 apply to the facility. In 

addition, the Director must review materials to determine compliance with the applicable 

standards.

If a facility submits a request in accordance with § 125.95(a)(3) to reduce the information about 

its CWISs and the source waterbody required to be submitted in its permit application (this 

request is not authorized in the first permit term after promulgation of this rule), the Director 

must approve the request within 60 days if conditions at the facility and in the waterbody remain 

unchanged since the facility’s previous application.

At each permit renewal, the Director must review the application materials and monitoring data 

to determine whether new or revised requirements for design and construction technologies or 

operational measures should be included in the permit to meet the national performance 

standards in § 125.94 or alternative site-specific requirements established pursuant to 

125.94(a)(5).

The Director should review materials submitted by the applicant before each renewal period to 

determine if there have been any changes in facility operations or physical and biological 

attributes of the source waterbody. Any changes should be evaluated to determine the need for 

additional or more stringent conditions in the permit.

Permitting Activities
June 2010 20

The Director must determine, using the information submitted by the existing facility in its 

permit application, the appropriate requirements and conditions, as described in § 125.98(b)(1) 

through § 125.98(b)(4), to include in the permit on the basis of the compliance alternative in 

§ 125.94(a) selected by the facility. The Director must perform the following in developing 

permit conditions:

(1) Develop Cooling Water Intake Structure Requirements. Requirements that implement the 

applicable provisions of § 125.94 must be included in the permit conditions. The Director 

must evaluate the performance of the design and construction technologies and/or 

operational measures proposed and implemented by the facility and require additional or 

different design and construction technologies and/or operational measure, if needed to 

meet the applicable impingement mortality and entrainment reduction, or production, 

requirements.

In determining compliance with the performance standards for facilities proposing to 

increase withdrawals of cooling water from a lake (other than a Great Lake) or a reservoir 

in § 125.94(b)(3), the Director must consider anthropogenic factors (those not considered 

“natural”) unrelated to the Phase II existing facility’s CWISs that can influence the 

occurrence and location of a thermocline. Anthropogenic factors may include source 

water inflows, other water withdrawals, managed water uses, wastewater discharges, and 

flow/level management practices (e.g., some reservoirs release water from deeper bottom 

layers). The Director must coordinate with appropriate Federal, State, or Tribal fish and 

wildlife agencies to determine if any disruption of the natural thermal stratification 

resulting from the increased withdrawal of cooling water is beneficial to the management 

of fisheries. The Director must also determine whether to impose more stringent 

conditions to comply with the requirements of other applicable State and Tribal law, or 

other Federal Law.

To develop appropriate requirements for the CWIS(s), the Director must do the following:

(i) Review and approve the Design and Construction Technology Plan required in 

§ 125.95(b)(4) to evaluate the suitability and feasibility of the design and 

construction technology and/or operational measures proposed to meet the 

requirements of § 125.94(b) or alternative site-specific requirements established 

pursuant to 125.94(a)(5).

(ii) In each reissued permit, include a condition in the permit requiring the facility to 

reduce impingement mortality and entrainment (or to increase fish production, if 

applicable) commensurate with the efficacy at the facility of the installed design and 

construction technologies and/or operational measures;

(iii) If the facility implements design and construction technologies and/or operational 

measures and requests that compliance with the requirements in § 125.94 be 

measured for the first permit term (or subsequent permit terms, if applicable) 

employing the Technology Installation and Operation Plan in accordance with 

§ 125.95(b)(4)(ii), the Director must review the Technology Installation and 

Operation Plan to ensure it meets the requirements of § 125.95(b)(4)(ii). If the 

Technology Installation and Operation Plan meets the requirements of 
June 2010 21

§ 125.95(b)(4)(ii), the Director must approve the Technology Installation and 

Operation Plan and require the facility to meet the terms of the plan including any

revision to the plan that may be necessary if applicable performance standards or 

alternative site-specific requirements are not being met. In determining whether to 

approve a Technology Installation and Operation Plan, the Director must evaluate 

whether the design and construction technologies and/or operational measures the 

facility has installed, or proposes to install, can reasonably be expected to meet the 

applicable performance standards in § 125.94(b) and/or alternative site-specific 

requirements established pursuant to § 125.94(a)(5), and whether the Technology

Installation and Operation Plan complies with the applicable requirements of 

§ 125.95(b). In reviewing the Technology Installation and Operation Plan, the 

Director must approve any reasonable scheduling provisions that are designed to 

ensure that impacts to energy reliability and supply are minimized, in accordance 

with § 125.95(b)(4)(ii)(A). If the facility does not request that compliance with the 

requirements in § 125.94 be measured employing a Technology Installation and 

Operation Plan or the facility has not been in compliance with the terms of its 

current Technology Installation and Operation Plan during the preceding permit 

term, the Director must require the facility to comply with the applicable 

performance standards in § 125.94(b) and/or alternative site specific requirements 

developed pursuant to § 125.94(a)(5). In considering a permit application, the 

Director must review the performance of the design and construction technologies

and/or operational measures implemented and require additional or different design 

and construction technologies and/or operational measures, and/or improved 

operation and maintenance of existing technologies and measures, if needed to meet 

the applicable performance standards and/or alternative site-specific requirements;

(iv) Review and approve the proposed Verification Monitoring Plan submitted under 

§ 125.95(b)(7) (for design and construction technologies) and require that the 

monitoring continue for a sufficient period of time to demonstrate whether the 

design and construction technology and/or operational measures meet the applicable 

performance standards in § 125.94(band/or site-specific requirements established 

pursuant to § 125.94(a)(5);

(v) If a facility requests requirements on the basis of a site-specific determination of 

BTA for minimizing adverse environmental impact, the Director must review the 

application materials submitted under § 125.95(b)(6) and any other information 

submitted, including quantitative and qualitative benefits, that would be relevant to 

a determination of whether alternative requirements are appropriate for the facility. 

If a facility submits a study to support entrainment survival at the facility, the 

Director must review and approve the results of that study. If the Director 

determines that alternative requirements are appropriate, the Director must make a 

site-specific determination of BTA for minimizing adverse environmental impact in 

accordance with § 125.94(a)(5). The Director may request revisions to the 

information submitted by the facility in accordance with § 125.95(b)(6) if it does 

not provide an adequate basis to make this determination. Any site-specific 

performance standard established on the basis of new and/or existing design and 

construction technologies and/or operational measures, must achieve an efficacy
June 2010 22

that is, in the Director’s judgment, as close as practicable to the applicable 

performance standard, but that does not result in costs that are significantly greater 

than the costs considered by the Administrator or the benefits of establishing the 

applicable performance standards in § 125.94(b); and

(vi) In developing performance requirements to reduce impingement mortality and 

entrainment for inclusion in a permit, the Director must review information on 

proposed methods submitted by the facility under § 125.95(b)(4)(ii)(D) and/or 

(b)(5)(v)(A), evaluate those and other available methods, and specify how 

assessment of success in meeting the performance standards must be determined 

including the averaging period for determining the percent reduction in 

impingement mortality and entrainment and/or the production of fish and shellfish. 

Compliance for facilities who request that compliance be measured employing a

Technology Installation and Operation Plan must be determined in accordance with 

§ 125.98(b)(1)(iv).

(2) Develop Monitoring Conditions. The permit must require the facility to perform the 

monitoring in accordance with the Verification Monitoring Plan required by

125.95(b)(7) and the Technology Installation and Operation Plan in 

§ 125.95(b)(4)(ii). The Director must consider the facility’s Verification Monitoring 

Plan and/or Technology Installation and Operation Plan, as appropriate, in 

determining additional applicable monitoring requirements in accordance with 

§ 125.96. The Director may modify the monitoring program when the permit is 

reissued and during the term of the permit on the basis of changes in physical or 

biological conditions in the vicinity of the CWIS.

(3) Require Record Keeping and Reporting. At a minimum, the permit must require the 

facility to report and keep records specified in § 125.97.

(4) Approve a Design and Construction Technology (as appropriate). The Director must 

conduct the following to approve a design and construction technology:

(i) For a facility that chooses to demonstrate that they have installed and properly

operate and maintain a design and construction technology approved in 

accordance with § 125.99, the Director must review and approve the 

information submitted in the Technology Installation and Operation Plan in 

§ 125.95(b)(4)(ii) and determine whether they meet the criteria in § 125.99;

(ii) If a person/facility requests approval of a technology under § 125.99(b), the 

Director must review and approve the information submitted and determine its 

suitability for widespread use at facilities with similar site conditions in its 

jurisdiction with minimal study. The Director must evaluate the adequacy of the 

technology when installed in accordance with the required design criteria and 

site conditions to consistently meet the performance requirements in § 125.94. 

The Director may approve a technology only following public notice and 

consideration of comment regarding such approval.
June 2010 23

(5) Bi-annual status report. Facilities must specify monitoring data and other 

information to be included in a status report every 2 years. The other information 

may include operation and maintenance records, summaries of adaptive 

management activities, or any other information that is relevant to determining 

compliance with the terms of the facility’s Technology Operation and Installation 

Plan.

5. The Information CollectedCAgency Activities, Collection, Methodology 

and Information Management

The following sections describe EPA activities related to analyzing, maintaining, and distributing 

the information collected.

5a. Agency Activities

EPA is responsible for overseeing the implementation section 316(b) Phase requirements. 

Implementation of reporting and monitoring requirements would rely extensively on State 

governments in those States that have authorization under CWA Section 402(b) to implement the 

NPDES permit program. In States that do not have NPDES permitting authority, EPA is 

responsible for administering the program. Under these circumstances, EPA performs the same 

activities as those outlined for Directors in Section 4.

EPA typically reviews NPDES permits in the early stages of implementation of new regulations. 

As such, EPA assumed that it would perform a detailed review, make comments, and follow up 

on comments for the 316(b) portions of State-issued NPDES permits, during the first 3 years 

after promulgation. This ICR covers years 7, 8, and 9 after promulgation; therefore, no burden for 

EPA review of State-issued NPDES permits is anticipated to occur in this ICR period.

5b. Collection Methodology and Information Management

The 316(b) Phase II Existing Facility rule provides minimum requirements regarding the type of 

information collected. Directors of NPDES programs are primarily responsible for determining 

which collection method and information management strategy is most appropriate. EPA will 

maintain some of the compliance data in its PCS database—in the process of being replaced by

the ICIS-NPDES. PCS and ICIS-NPDES are national computerized management information 

systems that provide for entry, updating, and retrieval of NPDES data and track permit issuance, 

permit limits and monitoring data, and other data pertaining to facilities regulated under NPDES. 

This technology reduces the burden to the permitting authority of gathering, analyzing, and 

reporting national permit and water quality data.

Permitting authorities are responsible for reviewing permit applications, permits, monitoring 

reports, and so on to verify the accuracy of the data. Permitting authorities are also responsible 

for entering that data into PCS/ICIS. Authorities have differing approaches for entering the data 

into PCS/ICIS and for checking data quality. This includes the use of coding forms, direct entry, 

batch uploads, and so on. Many States have developed State databases that are tailored to their 
June 2010 24

needs; interfaces are being developed for uploads directly to ICIS-NPDES from State systems. 

Permit data can be accessed by the public in one of three ways:

 Via the Freedom of Information Act (FOIA) by submitting a request to EPA or the State.

 Via an online query using EPA’s Envirofacts Data Warehouse and Applications Web site 

at http://www.epa.gov/enviro/index.html. Accessing data via Envirofacts provides a 

method to combine PCS/ICIS-NPDES data with other EPA databases and mapping tools.

 Via some State Web sites. 

5c. Small Entity Flexibility

The applicability requirements in § 125.94 exclude most existing small entities from the 316(b) 

Phase II Existing Facility rule. As a result, the 316(b) Phase II Existing Facility rule affects only a 

small absolute number of facilities owned by small entities, representing a very small percentage 

of all facilities owned by small entities in the electric power industry. EPA estimated that 25 inscope electric generators owned by small entities (out of a total of 543 estimated in-scope electric 

generators) are regulated by the 316(b) Phase II Existing Facility rule. Of the 25 generators, 16 

are projected to be owned by a municipality, 6 by a rural electric cooperative, 2 by a municipal 

marketing authority, and 1 by a political subdivision. In addition, EPA estimated that only a 

small percentage of all small entities in the electric power industry, approximately 1.3 percent, 

are subject to the 316(b) Phase II Existing Facility rule.

EPA considers the information collection and reporting requirements to be the minimum 

necessary to ensure that the Section 316(b) goal of “minimizing adverse environmental impact” 

is met. Because small entities constitute a very small share of the potentially affected facilities 

and because only a small percentage of all small entities in the electric power industry are subject 

to the rule, providing them greater flexibility such as less frequent data collection and reporting 

requirements would not have a large effect on the overall burden, but doing so could have an 

adverse impact on the effectiveness of the 316(b) Phase II Existing Facility rule. Furthermore, 

because the reporting requirements differ by source waterbody type and compliance alternative 

selected, entities of all sizes have the flexibility to minimize the total compliance costs including 

the costs and burden of information collection requirements.

5d. Collection Schedule

EPA anticipates that 506 Phase II existing facilities will fall within the scope of the 316(b) Phase 

II Existing Facility rule during the 3 years covered by this ICR. Because of the multiple years of 

data that must be collected for the Impingement Mortality and/or Entrainment Characterization 

Study, the permitting process is anticipated to take up to 3 years to complete. Of the 506 facilities 

projected to fall within the scope of this ICR period, 455 will be performing annual monitoring 

and reporting of operations by the end of year 3 of this ICR. The other 51 facilities are operations 

with recirculating cooling towers applying for a permit but not required to perform annual 

monitoring and reporting of operations. Table 2 provides the estimated implementation schedule 

for the facilities during the ICR approval period.
June 2010 25

Table 2. Number of Facilities Assumed to Comply with Information Collection: Requirements 

During the ICR Period by Year

Type of Activity

ICR Period

3/2010–2/2011 3/2011–2/2012 3/2012–2/2013

Facilities performing annual monitoring and reporting of 

operations

455 455 455

Facilities with recirculating cooling towers applying for a 

permit but not required to perform annual monitoring and 

reporting of operations

16 19 16

6. Estimating Respondent Burden and Cost of Collection

The following sections present the proposed rationale and assumptions made and results of 

EPA’s estimation of burden and costs for the implementation of the Section 316(b) Phase II 

Existing Facility rule. Specific respondent activities were detailed in section 4b(ii). It is important 

to note that this ICR covers years 7–9 after promulgation of the rule. Therefore, all activities are 

related to permits renewals and not first-time permit issuance. 

6a. Estimating Respondent Burden

This section describes the burden estimates for facilities and Directors, as well as the methods 

used and assumptions made to derive them. Respondent activities are separated into those 

activities associated with the NPDES permit application and those activities associated with 

monitoring and reporting after the permit is issued. The reason for this is that the permit cycle is 

every 5 years, while ICRs must be renewed every 3 years. Therefore, the application activities 

occur only once per facility during an ICR period, and so they are considered one-time burden for 

the purpose of this ICR. By contrast, the monitoring and reporting activities that occur after 

issuance of the permit occur on an annual and bi-annual basis respectively. For estimates of repermitting burdens, see Exhibits A.1 and A.3 in Appendix A.

Facility Burdens

Information collection would require in-scope facilities to devote time (i.e., as measured by staff 

hours) and resources (e.g., copies of documents and report mailings) to produce the necessary

NPDES permit applications, implementation plans, and bi-annual status reports. EPA expects 

that facility employees, including managers, engineers, engineering technicians, statisticians, 

biologists, biological technicians, draftsmen, and clerical staff, will devote time toward 

gathering, preparing, and submitting the various documents. To develop representative profiles 

of each employee’s relative contribution, EPA assumed burden estimates that reflect the staffing 

and expertise typically found in manufacturing facilities and power generating plants. In doing 

this, EPA considered the time and qualifications necessary to complete a variety of tasks: 

reviewing instructions, planning responses, researching data sources, gathering and analyzing 

data, typing or writing the information requested, reviewing results, conferring with permitting 

authorities and expert consultants, and sending documents.
June 2010 26

EPA anticipates that facilities will use contracted services to perform many of their required 

sampling and analyzing tasks. The contracted staff are likely to include project managers, 

biologists, statisticians, and biological technicians. The work done by these contracted employees 

will be done on-site on a regular basis. Therefore, the hourly burdens associated with the work 

are included in the overall burden estimates for each facility.

For each activity burden assumption, EPA selected time estimates to reflect the expected effort 

necessary to carry out these activities under normal conditions and reasonable labor efficiency

rates. EPA assumed that the majority of the actual work performed by facility staff, such as 

researching, collecting, and analyzing data, as well as writing the documents, will be carried out 

by junior technical staff. Burdens associated with managerial and senior engineering staff include 

time for actions such as occasional or seasonal visits to supervise sampling efforts, as well as 

periodic review of lab results and documentation. EPA assumed that the facilities will employ a 

drafter to perform computer aided drafting (CAD) operations. For contracted employees, EPA 

assumed that the majority of the work would be carried out by the biologists and the biological 

technicians.

Table 3 provides a summary of the hourly burden estimates for facilities performing NPDES 

permit renewal. Table 4 provides the annual monitoring, and bi-annual reporting activities 

associated with the 316(b) Phase II Existing Facility rule. For a more detailed presentation of 

hourly burdens for facilities, see Exhibits A.1 and A.2 in Appendix A.

The activities listed in the first column of both Tables 3 and 4 correspond to the facility

respondent activities outlined earlier in Section 4b(ii). All facilities will be subject to the start-up 

and permit application activities listed in Table 3. For the other listed activities, only a subset of 

facilities are expected to perform them. The set of activities that each facility is estimated to 

perform is based on the rule requirements to which the facility is subject and the type of 

waterbody from which it draws. For a detailed presentation of the number of facilities performing 

each activity, see Exhibits A.5 and A.6 in Appendix A.

Start-Up Activities

In Table 3, the start-up burdens account for reading the published regulations, sample permits, 

and any guidance materials associated with the rule; determining the required staff and resources 

necessary to successfully complete the application process and meet all annual monitoring and 

reporting requirements; and training staff to perform tasks that they would not be required to 

conduct if the rule were not implemented. It is assumed for the analysis that facilities will receive 

their reissued permits at the beginning of the year. Thus, during the first year (2010), facilities 

will perform permit application activities for their permits that are reissued at the beginning of 

the second year (2011). It is also assumed that facilities required to conduct Impingement 

Mortality and Entrainment Characterization Studies will need to begin collecting monitoring data 

2 to 3 years before permit renewal. Furthermore, all facilities will begin the other permit 

application activities in the year just before receiving their reissued permits. These start-up 

activities, applicable to all facilities, are assumed to be performed by facility management and 

junior technical staff.
June 2010 27

Table 3. Average per Facility Burden for each NPDES Permit Application Activity

Activities Burden (hrs)

Start-up activities 13

Permit application activities 147

Proposal for collection of information for CDS 78

Source waterbody flow information 31

Design and construction technology plan 68

Freshwater impingement mortality and/or entrainment characterization study 2,919

Marine impingement mortality and/or entrainment characterization study 5,401

Total* 8,658

* The total does not reflect the average burden for every facility because not all facilities will need to perform 

every activity listed.

Table 4. Average Burden per Facility for Annual Monitoring and Reporting Activities

Activities Burden (hrs)

Biological monitoring (impingement, freshwater) 379

Biological monitoring (impingement, marine) 482

Biological monitoring (entrainment, freshwater) 614

Biological monitoring (entrainment, marine) 776

Bi-annual status report activities 236

Verification study 122

Total* 2,609

* The total does not reflect the average burden for every facility because not all facilities will need to perform 

every activity listed.

Permit Application Activities

Permit application activities refer to the development and submittal of the required elements of 

the application for reissuance of the NPDES permit.

As part of the permit application process, all Phase II existing facilities will gather source water 

physical data, CWIS data, and cooling water system data. EPA anticipates that much of the data 

required to characterize the waterbody and the CWIS has already been gathered by the facility, 

and that much of the actual facility burden is from deriving the requested information from this 

data.

To derive the source water physical data, EPA assumes that junior technical staff will work with 

a CAD operator to develop a description of the physical configuration of the source waterbody

where the CWIS is located, including areal dimensions, depths, salinity and temperature regimes. 

The CAD operator will produce scaled drawings showing the physical configuration of the 

source waterbody and prepare locational maps of the waterbody. The junior technical staff will 

use this information and available data to produce a report characterizing and documenting the 

hydrological and geomorphological features of the source waterbody. Depending on the extent of 

existing information it might be necessary for some facilities to conduct physical studies to 

determine the intake’s area of influence within the waterbody.
June 2010 28

CWIS data will be used to develop a report on the operation of the intake structure. EPA assumes 

that a CAD operator will assist junior technical staff in preparing a narrative description of the 

configuration of the CWIS and its location within the waterbody and in the water column, 

including measurements of the latitude and longitude of the CWIS. In addition, junior technical 

staff will develop a narrative that describes the operation of the CWIS, including design flows, 

daily hours of operation, number of days of the year in operation, and seasonal changes, if 

applicable. Management will review and revise this data.

Junior technical staff will also develop a narrative characterizing the facility’s cooling water 

system, which includes a flow distribution and water balance diagram for the facility depicting all

sources of water to the facility, recirculating flows, and discharges. Management will review and 

revise this characterization. EPA also anticipates that the junior technical staff will perform 

engineering calculations for the source waterbody and CWIS documents. Management will 

review and revise these calculations.

In addition, Phase II existing facilities need to comply with CDS requirements depending on the 

compliance alternative selected. Facilities that already have a closed-cycle recirculating system 

are not required to submit a CDS and facilities that already have a design intake flow of 0.5 ft/s 

or less are also exempted from impingement requirements. However, facilities choosing to install 

new technologies rather than reducing flows to levels commensurate with closed-cycle 

recirculating systems are required to gather and submit additional information in the form of a 

CDS to confirm that the technology(ies) and operational measures proposed and/or implemented 

at the intake meet the applicable performance standards. For additional details, see Section 4b(ii).

The CDS characterizes impingement mortality and/or entrainment, the operation of the CWIS, 

and confirms that the technologies and/or operational measures the facility has selected and/or 

implemented at the CWIS meet the applicable requirements. The CDS entails a proposal for 

information collection, source waterbody flow information, an Impingement Mortality and/or 

Entrainment Characterization Study, technology and compliance assessment information, 

information to support site-specific determination of BTA for minimizing adverse environmental 

impact, and a verification monitoring plan. The facility hourly burdens for demonstrating 

compliance with these requirements include developing and submitting narrative descriptions, 

supporting documentation, and engineering calculations.

Comprehensive Demonstration Study (CDS) Requirements

Proposal for Information Collection

As a first step in the CDS, the facility must develop and submit a proposal for the collection of 

information to support the CDS. EPA assumes that junior technical staff will develop a list and 

description of any historical studies characterizing impingement and entrainment and/or the 

physical and biological conditions in the vicinity of the intakes and their relevancy to the CDS. 

The facility management will review the collected information to determine the extent to which 

existing data are representative of current conditions, are sufficient to develop a scientifically

valid estimate of impingement and entrainment, and were collected using appropriate quality
June 2010 29

assurance/quality control procedures. Junior technical staff are assumed to develop a description 

of the proposed and/or implemented technologies and operational measures to be evaluated in the 

CDS. Facility management will review and revise this description.

Although some facilities are likely to have sufficient available information to forego an extensive 

monitoring study, EPA assumes that all facilities performing a CDS will perform an 

Impingement Mortality and/or Entrainment Characterization Study involving between two and 

three years of monitoring. Therefore, these facilities will need to develop and submit a source 

water sampling plan that documents all methods and quality assurance procedures for sampling 

and data analysis, as well as describes the study area (including the area of influence of the CWIS 

and at least 100 meters beyond). EPA assumes that the junior technical staff will review source 

water and CWIS data. They will use this information to write a draft of the source water 

sampling plan. A CAD operator will assist the junior technical staff in this effort. The facility

manager will supervise this effort, review the draft, and consult with the manager of the 

contracted firm that will perform the monitoring. The contracted manager will review the draft 

and provide feedback.

Source Waterbody Flow Information

As part of the CDS, facilities with intakes located on freshwater rivers/streams must submit 

source waterbody flow information. This information is used to determine the impact of the 

CWIS on the natural flow of the source water and is an important factor in determining the 

appropriate technologies. Similarly, facilities with intakes on freshwater lakes or reservoirs need 

to determine the extent to which the CWIS disrupts the thermal stratification of the waterbody. 

EPA anticipates that most facilities will have ready access to existing flow and thermal 

stratification information. However, EPA assumes that some facilities will need to take flow or 

thermal stratification measurements immediately around the intake. Junior technical staff are 

expected to gather existing information and take measurements for freshwater river and stream 

flows and for lakes and reservoirs. Junior technical staff will perform engineering calculations 

and develop a report. Facility management will review and revise this information.

Impingement Mortality and/or Entrainment Characterization Study

The required level of effort for the Impingement Mortality and/or Entrainment Characterization 

Study is likely to vary considerably depending on the availability of existing data and the 

complexity of the habitat and waterbody in which the CWIS will be located. For the purpose of 

developing the ICR cost and burden estimates, it is assumed that each existing facility that is 

required to perform a CDS will also perform the Impingement Mortality and/or Entrainment 

Characterization Study. EPA assumes that the sampling required for the Impingement Mortality

and/or Entrainment Characterization Study will take 2 years for facilities drawing from 

freshwater bodies and 3 years for those facilities drawing from marine waters. Therefore, the 

entire application process can take up to 3 years to complete. The Impingement Mortality and/or 

Entrainment Characterization Study activities will be performed in years before the reissuance of 

the NPDES permit.

To accurately characterize the effects of impingement and entrainment on the aquatic 

communities found in the source water, offshore monitoring must occur at the same time that 
June 2010 30

monitoring for impingement and entrainment is occurring. As a result, EPA assumes that 

monitoring is performed simultaneously at the facility for impingement and entrainment, and 

offshore at the edge of the determined zone of influence. Because impingement more often 

impacts adult organisms, while entrainment affects juvenile organisms, offshore samples must 

include eggs, juvenile, and adult organisms. Therefore, EPA assumes that three types of sampling 

will occur, as presented in Table 5.

Table 5. Impingement Mortality and/or Entrainment Characterization Study Sample Types

Sample Type Location of Sample

Impingement sample At the intake structure

Entrainment sample Behind the intake screens

Offshore sample At the edge of the zone of influence

To accurately characterize seasonal and annual fluctuations in aquatic communities impacted by

the CWIS, EPA assumes sampling is performed at the facility on a biweekly basis over 2 years 

for freshwater facilities and 3 years for marine facilities. EPA believes that a sizable majority of 

the monitoring work will be carried out by the biologists and biological technicians. Over the 

course of the study, other employees will also spend time contributing to the use of the 

monitoring data.

Technology and Compliance Assessment Information

EPA assumes that the portion of the Design and Construction Technology Plan (and Technology

Installation and Operation Plan, if applicable) associated with evaluation of potential CWIS 

effects will be conducted during the year before the issuance of the NPDES permit to allow the 

facility time to incorporate information from the Impingement Mortality and/or Entrainment 

Characterization Study already underway.

Design and Construction Technology Plan

If the facility chooses to use design and construction technologies or operational measures in 

whole or in part to meet the requirements of § 125.94, the facility must also submit a Design and 

Construction Technology Plan as part of the CDS. EPA assumes that a CAD operator will 

delineate the hydraulic zone of influence, that junior technical staff will assist the CAD operator, 

and management will review this work. Junior technical staff will perform engineering 

calculations to determine anticipated impingement rates—and develop narrative descriptions of 

the design and operation of all design and construction technologies or operational measures 

(existing and proposed)—used to meet the requirements to reduce impingement mortality. 

Management will review the calculations and write-up. Those facilities that need to address 

entrainment will spend approximately the same amount of time performing engineering 

calculations and developing a narrative description. Finally, junior technical staff will document 

that these chosen technologies reflect BTA at the facility’s site.

As part of the Design and Construction Technology Plan, facilities must include a site-specific 

evaluation of the technology(ies) and/or operational measures. This site-specific evaluation can 

be based on representative studies (i.e., studies that have been conducted at CWISs located in the 

same waterbody type with similar biological characteristics) and/or site-specific technology
June 2010 31

prototype studies. EPA assumes that for the site-specific technology prototype studies, the 

facilities will conduct an on-site pilot study for the technology or operational measure. Pilot 

studies were all completed in the first issuance of the permit and therefore the costs are not recalculated for the renewal phase of the regulation. 

Information to Support Site-Specific Determination of BTA for Minimizing Adverse 

Environmental Impact

Facilities may choose to request a site-specific determination of BTA in lieu of meeting the 

performance standards of § 125.94(a). If a facility requests a site-specific evaluation of BTA, it 

will first need to demonstrate to the Director that it meets one of two cost criteria. The first of the 

criteria requires the facility to demonstrate that its cost of compliance with the applicable 

performance standards specified would be significantly greater than the costs considered by the 

Administrator. The second of the criteria requires a facility to demonstrate that its costs would be 

significantly greater than the benefits of complying with the performance standards at the 

facility’s site.

For the purpose of developing the ICR cost and burden estimates, EPA assumed that all 

respondents requesting a site-specific determination of BTA would claim that costs outweighed 

benefits, and therefore would perform the activities associated with the valuation of monetized 

benefits of reducing impingement and entrainment in addition to performing the activities 

associated with the comprehensive cost evaluation study and the site-specific technology plan. 

Performing the site-specific determination is voluntary, so EPA has not included evaluation of 

the proposed site-specific measures in developing the ICR cost and burden estimates for 

facilities. However, for the original ICR developed for the rule, EPA recognized that respondents 

choosing to perform activities related to site-specific determination of BTA would incur 

additional ICR costs. It was estimated that facilities implementing activities related to sitespecific determination of BTA, including the preparation of comprehensive, cost-evaluation 

study and site-specific technology plan would incur an average burden of approximately 700 

hours at a cost of $37,000 per facility (2004 dollars). EPA estimated that the average annual 

burden increases by 13,754 hours and the total average annual ICR costs might increase between 

1 and 1.25 million dollars (2004 dollars) if all facilities with impingement and entrainment 

requirements choose to perform activities related to site-specific determination of BTA and 

prepare the comprehensive cost evaluation study and site-specific technology plan. Depending on 

the number of facilities with both impingement and entrainment requirements choosing to pursue 

site-specific determination of BTA, the above ICR burden and cost will be reduced accordingly. 

In addition, EPA believed that some of the above additional cost will be offset by reductions in 

technology costs for these facilities because these facilities may receive lowered performance 

requirements.

Though only a small percentage of the facilities are expected to perform activities related to 

site-specific determination of BTA, EPA estimated the Director burdens for reviewing sitespecific studies for all facilities with impingement and entrainment requirements.
June 2010 32

Verification Monitoring Plan

As part of the CDS, facilities must include a plan to conduct, at a minimum, 2 years of 

monitoring to verify the full-scale performance of the proposed or implemented technologies, or 

operational measures. EPA assumes that the junior technical staff will write a plan that describes 

the frequency and duration for monitoring, the locations to be monitored, the basis for 

determining the locations, and the information that will be included in the final report. A CAD 

operator will assist the junior technical staff with the drawings and diagrams contained in the 

plan. The facility management will oversee the writing of the plan and review/revise the various 

drafts of the plan before it is finalized.

In the first 2 years of operation under their reissued NPDES permits, Phase II existing facilities 

are required to use impingement and entrainment monitoring data to perform verification studies 

(as described in their verification monitoring plans) to verify the full-scale performance of the 

proposed or implemented technologies and/or operational measures. It is assumed that facilities 

begin verification monitoring when they receive their permits, monitor for 2 years, and submit 

the monitoring results and study analysis at the beginning of the third year.

Annual Facility Activities

The principal annual activity for most facilities will be biological monitoring. Burden estimates 

for annual biological monitoring are less than those for the Impingement and Entrainment 

Characterization Study performed by some facilities as part of the permit application process. 

Biological monitoring is assumed to be performed at one location on a monthly basis for 

impingement and on a biweekly basis for entrainment. The monitoring results are analyzed and 

summarized in a bi-annual status report. Those facilities that submitted a verification monitoring 

plan as part of their permit application will also use the first 2 years of monitoring data to 

produce a verification study. For a more detailed account of the annual burden for facilities, see 

Exhibit A.2 in Appendix A.

Director Burdens

The 316(b) Phase II Existing Facility rule would require Directors to devote time and resources 

to review and respond to the NPDES permit applications; proposal, study and sampling plans; 

and bi-annual status reports submitted to them.

Director Permit Issuance Activities

EPA expects that State senior technical, junior technical, and clerical staff will devote time 

toward gathering, preparing, and submitting the various documents. EPA assumed burden 

estimates that reflect the staffing and expertise used by States for the NPDES permit 

administration process. In doing this, EPA considered the time and qualifications necessary to 

complete various tasks such as reviewing submitted documents and supporting materials, 

verifying data sources, planning responses, determining specific permit requirements, writing the 

actual permit, conferring with facilities and the interested public, and entering the permit 

information into the PCS/ICIS database. Table 6 provides a summary of the hourly burden 

estimates for state Directors performing various activities associated with the 316(b) Phase II 
June 2010 33

Existing Facility rule. For a more detailed presentation of State Director hourly burdens, see 

Exhibit A.3 (state) in Appendix A.

Table 6. Average State Director Burden for Activities

Activities Burden (hrs) 

Renewal Period

Director permit issuance activities (per facility) 256

Verification study review (per Facility)* 21

Annual director activities (per facility) 41

Total** 318

* Facilities must monitor for at least 2 years before submitting their verification study for review.

** The total does not reflect the average director burden for each facility because not all facilities will need to 

perform every activity listed.

Cooling Water Intake Structure Requirements

The Director must review the Design and Construction Technology Plan to evaluate the 

suitability and feasibility of the technology or operational measures proposed to meet the 

requirements of § 125.94. For all facilities performing the CDS, the Director must review and 

approve the proposed Verification Monitoring Plan and require that the monitoring continue for a 

sufficient period of time to demonstrate that the design and construction technology and/or 

operational measures meet the requirements of § 125.94 (b). For a facility that requests 

requirements on the basis of site-specific BTA for minimizing adverse environmental impact, the 

Director must review the application materials submitted and any other information, including 

quantitative and qualitative benefits that would be relevant to a determination of whether 

alternative requirements are appropriate for the facility. In determining the Director burden for 

review of site-specific determination, it is assumed that all facilities with both impingement and 

entrainment requirements will choose to pursue the site-specific alternative. In developing 

performance requirements for impingement mortality and entrainment for inclusion in a permit, 

the Director must review information on proposed methods submitted by the facility, evaluate 

those proposed by the facility and other available methods, and specify how compliance with the 

requirements must be determined including the averaging period for determining the percent 

reduction required by the performance standards.

EPA assumes that the Directors will spend a significant amount of time reviewing the 

impingement mortality and entrainment characterization studies and the design and construction 

technology plans and Technology Installation and Operation Plans. A significant amount of 

review time is also expected for those facilities that choose to request site-specific determinations 

of BTA to review the required supporting studies. The additional effort devoted to reviewing the 

impingement mortality and entrainment characterization studies is because the studies cover 

multiple years’ worth of data collected at the site. The additional effort devoted to reviewing the 

information to support site-specific determination of BTA is because of the complexity of the 

required comprehensive cost evaluation study or valuation of monetized benefits for reducing 

impingement and entrainment.

Monitoring Conditions
June 2010 34

In determining the applicable monitoring requirements, the Director must consider the facility’s 

verification monitoring plan and modify the monitoring program on the basis of changes to the 

physical or biological conditions in the vicinity of the CWIS. The requirement for modifying the 

monitoring program may be made during the term of the permit or when the permit is reissued. 

EPA assumes that junior technical staff will review the facility’s verification monitoring plan and 

make recommendations for modifying the monitoring program. Senior technical staff will review 

and implement the recommendations.

Record Keeping and Reporting

EPA assumes that clerical and junior technical staff will review the monitoring data and status 

report from the facilities regarding record keeping. Senior technical personnel will oversee their 

work.

Design and Construction Technology Approval

For facilities choosing to demonstrate that they have installed and properly operate and maintain 

a design and construction technology approved in accordance with § 125.99, the Director must 

review the information submitted to determine if they meet the criteria in § 125.99. EPA assumes 

that junior technical staff will review the documentation submitted by the facility for compliance 

as required in § 125.99. Senior technical staff will provide technical oversight for this work. 

Moreover, if a person requests approval of a technology under § 125.99(b), the Director must 

review the information submitted and determine its suitability for widespread use at facilities 

with similar site conditions in its jurisdiction with minimal study. The Director must evaluate the 

adequacy of the technology when installed in accordance with the required design criteria and 

site conditions to consistently meet the performance requirements in § 125.94. The Director must 

approve a technology only following public notice and consideration of comment regarding such 

approval. EPA assumes that senior technical staff will review the information submitted and 

evaluate the adequacy of the proposed technology. Junior technical staff will work under the 

technical direction of senior personnel in this regard and provide assistance in reviewing and 

compiling the public comments received.

Annual Director Activities

Facilities required to perform annual biological monitoring for impingement and entrainment are 

required to submit an bi-annual report that details inspection and maintenance records for 

impingement and technology controls and a detailed analysis of monitoring results. EPA assumes 

that directors will use these reports to track facility compliance and to determine if a reduction in 

monitoring frequency is appropriate.

6b. Estimating Respondent Costs

This section describes cost estimates for facilities and Directors, as well as the methods used to 

derive them. Because of the 5-year permit cycle, facilities and Directors will incur initial 

permitting costs, re-permitting costs, as well as annual costs.

6b(i). Estimating Labor Costs
June 2010 35

The costs to the respondent facilities associated with the ICR activities can be estimated by

multiplying the time spent in each labor category by an appropriately loaded hourly wage rate. 

All base wage rates used for facility labor categories were derived from the Bureau of Labor 

Statistic’s (BLS) Occupational Outlook Handbook 2010–2011. These reported labor rates were 

based on data from the year 2009 and are adjusted for inflation. Inflation factor was derived from 

the BLS Employment Cost Index and was used to adjust the Occupational Outlook Handbook

labor rates to reflect labor rates for September of 2009.

Compensatory loading factors ranging from 35 percent to 53 percent, depending on the labor 

category, were used to account for any paid leave, supplemental pay, insurance, retirement and 

savings, and required and nonrequired benefits received by employees (EPA ICR 2060.02 citing 

BLS Employment Cost Trends, March 2001). EPA assumed an additional loading factor of 15 

percent to account for general overhead costs directly attributable to facility employees 

performing work in support of the permit process. Expenses for contracted employees typically

include higher overhead costs, as well as a fee to ensure profit for the contracting company. EPA 

assumes that the overhead for the contracted employees will be 50 percent, and the fee will be 8 

percent.

To represent the base labor rate for facility management, EPA used the average national salary

for an engineering manager of $115,270 per year. This figure was divided by 2,080 hours to 

derive the hourly managerial wage rate of approximately $55 per hour. After adjusting this rate 

for inflation, compensation, and overhead, the rate is approximately $98 per hour. The median 

annual salary of $48,130 for a mechanical engineering technician was used to represent the base 

labor rate for junior technical staff. After determining the hourly wage rate and adjusting for 

inflation and other factors, this labor rate was approximately $41 per hour. The median annual 

salary for a drafter performing CAD work was reported to be $22 per hour, and, after adjusting 

and loading the rate, it is approximately $40. The reported average annual salary for clerical 

workers was $25,320, and the fully adjusted and loaded hourly rate is approximately $19 per 

hour.

To represent the base labor rate for a contracted manager of monitoring work done on-site, EPA 

used the average national salary for a natural sciences manager of $112,800 per year with a fully

loaded rate of $122 per hour. The median annual salary for a statistician was $72,610 per year 

with an adjusted hourly rate of approximately $77 per hour. Biologists and biological technicians 

had an average hourly pay of $31 and $18 and a fully loaded rate of $70 and $42, respectively.

Director Labor Costs

For Director costs, all the base labor rates and compensation factors were derived from published 

employment cost trends for State and local government workers for the first quarter of 2001 

(EPA ICR 2060.02 citing BLS Employment Cost Trends, March 2001). These labor rates were 

adjusted to reflect labor rates for September of 2009 (BLS Employment Cost Index). EPA chose 

the BLS labor category of white-collar professional specialist to represent the senior 

administrative and technical staff that will oversee and manage the NPDES permit program. The 

base hourly rate for this category was approximately $29 per hour, and, after adjusting for 

compensation and inflation, it is approximately $62 per hour.
June 2010 36

Similarly, EPA chose the BLS labor category of white-collar professional technical to represent 

the junior technical staff that EPA expects to perform the majority of the actual NPDES 

permitting work. The reported base pay for this category was approximately $18 per hour, which 

becomes approximately $37 per hour after being adjusted for compensation, overhead, and 

inflation. The hourly wage for State government clerical workers was $13 per hour before 

adjustment and approximately $29 afterward.

6b(ii). Estimating Capital and Operation and Maintenance Costs

A facility incurs capital/start-up costs when it purchases equipment or builds structures that are 

needed for compliance with the rule’s reporting and record keeping requirements and that the 

facility would not use otherwise. A facility incurs operation and maintenance (O&M) costs when 

it uses services, materials, or supplies that are needed to comply with the rule’s reporting and 

record keeping requirements and that the facility would not use otherwise. Any costs for the 

operation and upkeep of capital equipment are considered O&M costs. Another type of O&M 

cost is for the purchase of contracted services, such as laboratory analyses. The purchase of 

supplies such as filing cabinets and services such as photocopying or boat rental are also 

considered O&M costs and are referred to as other direct costs (ODCs). Capital and O&M costs 

were estimated for the active ICR (EPA ICR No. 2060.02) and were simply inflated to 

September 2009 dollars using CPI.

In general, the labor costs and O&M costs reported in this analysis are assumed to represent 

typical average national cost estimates that are likely to be incurred by Phase II existing facilities 

and by permitting authorities. EPA attempted to take into account various factors such as 

decreases in labor efficiency that occur during extreme climate conditions, equipment down time, 

and the occasional sample that might need to be replaced because it was lost or spoiled during 

transport. Tables 7, and 8 provide a summary of facility-level average labor costs, capital costs, 

and O&M costs over the 3-year ICR period. For a more detailed presentation of all compliance 

costs for facilities, see Exhibits A.1 and A.2 in Appendix A.

Table 7. Average per Facility Burden and Costs for each NPDES Permit Renewal Activity

Activities Burden 

(hrs)

Labor Cost 

(2009)

Capital 

(2009)

O&M 

(2009)

Start-up activities 13 $874 $0 $57

Permit application activities 147 $7,850 $0 $285

Proposal for collection of information for CDS 78 $4,322 $0 $228

Source waterbody flow information 31 $1,287 $0 $114

Design and construction technology plan 68 $3,195 $0 $171

Freshwater impingement mortality and/or 

entrainment characterization study

2,919 $169,894 $0 $35,599

Marine impingement mortality and/or entrainment 

characterization study

5,401 $310,208 $0 $69,418

Total* 8,658 497,630 $0 105,872

* The totals do not reflect the average costs for every facility because not all facilities will need to perform 

every activity listed.
June 2010 37

Table 8. Average Burden and Costs* per Facility for Annual Monitoring and Reporting Activities

Activities Burden (hrs) Labor Cost (2009$) O&M (2009$)

Biological monitoring (impingement, freshwater) 379 $22,948 $571

Biological monitoring (impingement, marine) 482 $29,208 $742

Biological monitoring (entrainment, freshwater) 614 $37,703 $10,041

Biological monitoring (entrainment, marine) 776 $47,146 $12,882

Bi-Annual status report activities 236 $21,342 $856

Verification study 122 $8,820 $571

Total** 2,609 $167,166 $25,663

* There are no capital costs associated with the annual monitoring and reporting activities.

** The totals do not reflect the average burden and costs for every facility because not all facilities will need to 

perform every activity listed.

Director O&M Costs

EPA does not anticipate any O&M costs other than ODCs for state Directors as a result of the 

316(b) Phase II Existing Facility rule. Table 9 provides estimates of average state Director labor 

costs and ODCs. For a more detailed explanation of State Director costs, see Exhibit A.3 (state) 

in Appendix A.

Table 9. Average State Director Burden and Costs* for Activities

Activities Burden (hrs) Labor Cost (2009$) O&M (2009$)

Director Permit Issuance Activities (per 

Facility, renewal period)

256 $14,108 $342

Verification study review (per facility)** 21 $922 $11

Annual director activities (per facility) 41 $2,226 $2,255

Total*** 318 $17,257 $2,608

* There are no capital costs associated with the annual monitoring and reporting activities.

** Facilities must monitor for at least 2 years before submitting their verification study for review.

*** The totals do not reflect the average director burden and costs for each facility because not all facilities will 

need to perform every activity listed.

6c. Estimating Agency Burden and Costs

As mentioned previously, 46 States and the Virgin Islands are authorized to administer the 

NPDES permitting program. For in-scope facilities applying for reissued permits in the 10 

unauthorized States and Territories, EPA will incur costs and burdens similar to those incurred 

by States with permitting authority.

6d. Estimating the Respondent Universe and Total Burden and Costs

During the 3 years covered by this ICR (which correspond to years 7–9 after rule promulgation), 

there are an estimated 506 facilities along with 42 States that the Section 316(b) Phase II Existing 

Facility rule could affect. The rule would require each respondent to comply with one or more 

provisions. In turn, each provision has numerous activities associated with it. Exhibits A.5 and 

A.6 in Appendix A provide an estimate of the number of respondents and responses expected for 

each provision of the rule during each year of the ICR approval period. The annual estimates are 

based on the compliance schedule used to estimate the cost of the final rule. In addition, Exhibits 

A.7 to A.10 provide a summary of the respondent burdens and costs for each year of the ICR 
June 2010 38

period. These estimates were calculated by multiplying facility and state Director level burden 

and cost estimates in Exhibits A.1-A.3 by the number of respondents performing each activity in 

Exhibit A.5 (see Appendix A).

6e. Bottom Line Burden Hours and Costs Tables

This section provides a description of bottom line data collection and record keeping burden and 

cost estimates for implementation of the 316(b) Phase II Existing Facility rule.

6e(i). Respondent Tally

The bottom line burden hours and costs for facilities and Directors are the total annual hours and 

costs collectively incurred for all activities during the ICR period. Table 10 provides a summary

of the average annual number of respondents, burden hours, and costs. A more detailed summary

can be found in Exhibit A.11 in Appendix A.

Table 10. Summary of Average Annual Respondents, Burden, and Costs for Facilities and State 

Directors for the ICR Period

Average Annual 

Respondents

Average Annual 

Burden (hours)

Average Annual 

Labor Costs 

(2009$)

Average Annual 

Capital and O&M 

Costs (2009$)

Total Annual 

Costs (2009$)

Facilities 472 977,293 $61,700,233 $9,925,250 $71,625,483

State Directors 42 46,228 $2,523,965 $50,219 $2,574,184 

Totals 514 1,023,521 $64,224,198 $9,975,469 $74,199,667 

6e(ii). Agency Tally

The bottom line burden hours and costs for the Federal agency are the total annual hours and 

costs collectively incurred for all activities during the ICR period. Table 11 provides a summary

of the average annual agency burden hours and costs. A more detailed summary can be found in 

Exhibit A.11 in Appendix A.

Table 11. Summary of Average Annual Agency Burden and Costs for the ICR Period

Average Annual 

Burden (hours)

Average Annual 

Labor Costs 

(2009$)

Average Annual 

Capital and O&M 

Costs (2009$)

Total Annual 

Costs (2009$)

Agency Totals 2,182 $112,840 $1,722 $114,562 
June 2010 39

Table 12. Burden Comparison: 2007 vs. 2010 ICR for 316(b) Phase II Existing Facilities 

2010 2007 % Reason 

for 

Change

Facility Activities Annual 

Average

Annual 

Average

Burden 

Change

NPDES Permit Application Activities

Start-up Activities 1,421 2,139 -34% adjustment

Permit Application Activities 16,219 22,988 -29% adjustment

Proposal for Collection of Information for Comprehensive 

Demonstration Study 6,455 8,346 -23% adjustment

FW River/Stream Source Water Body Flow Information 1,300 2,773 -53% adjustment

FW Lake/Reservoir Source Water Body Flow Information 571 1,684 -66% adjustment

Design and Construction Technology Plan (Impingement 

Only) 2,920 5,016 -42% adjustment

Design and Construction Technology Plan (Impingement 

& Entrainment) 2,773 4,055 -32% adjustment

Freshwater Monitoring for Impingement Mortality & 

Entrainment Characterization Study 131,166 246,543 -47% adjustment

Marine Monitoring for Impingement Mortality & 

Entrainment Characterization Study 170,544 290,853 -41% adjustment

Impingement Mortality & Entrainment Characterization 

Study Initial Analysis 9,304 11,795 -21% adjustment

Impingement Mortality & Entrainment Characterization 

Study Final Report 10,000 25,079 -60% adjustment

Pilot Study Impingement Monitoring Only (Freshwater) for 

Pilot Study 0 0 -

Pilot Study Impingement & Entrainment Monitoring 

(Freshwater) for Pilot Study 0 2,075 -100% adjustment

Pilot Study Impingement Monitoring Only (Marine) for Pilot 

Study 0 790 -100% adjustment

Pilot Study Impingement & Entrainment Monitoring 

(Marine) for Pilot Study 0 13,633 -100% adjustment

Verification Monitoring Plan 0 7,595 -100% adjustment

NPDES Permit Application Activity Total 352,674 645,361 -45% adjustment

Annual Activities

Biological Monitoring for Impingement (Freshwater) 109,910 89,949 22% adjustment

Biological Monitoring for Impingement (Marine) 79,464 63,892 24% adjustment

Biological Monitoring for Entrainment (Freshwater) 178,060 145,723 22% adjustment

Biological Monitoring for Entrainment (Marine) 128,040 102,949 24% adjustment

Bi-Annual Status Report Activities 107,380 87,320 23% adjustment

Verification Study 21,765 22,021 -1% adjustment

Annual Activity Yearly Labor Total 624,619 511,854 22% adjustment

Facility Yearly Labor Total 977,293 1,157,216 -16% adjustment

State Director Activities

Director Start-up Activities 0 0 -

Director Permit Issuance Activities 26,319 65,764 -60% adjustment

Verification Study Review 1,869 2,968 -37% adjustment

Alternative Regulatory Requirements 0 0 -

Annual Director Activities 18,040 14,651 23% adjustment

Yearly Total 46,228 83,383 -45% adjustment

Respondents Total 1,023,521 1,240,599 -17% adjustment
June 2010 40

6f. Reasons for Change in Burden

The current approved ICR for the 316(b) phase II existing facilities was developed in 2007. As 

shown in Table 12, the 2007 ICR estimated an annual average respondent burden of 1,240,599 

hours. This ICR estimates an annual average respondent burden of 1,023,521 hours, which 

represents a 17% decrease in burden.

The change in burden results mainly from the shift from the approval period to the renewal 

period of the 316(b) Phase II Existing Facilities rule. The previous ICR covered the last 2 years 

of the permit approval period (i.e., years 4 and 5 after implementation) and the first year of the 

renewal period (i.e., year 6 after implementation). This ICR covers renewal of permits only

(years 7 to 9 after implementation). Activities for renewing an NPDES permit already issued 

under the 316(b) Phase II Existing Facilities rule are less burdensome than those for issuing a 

permit for the first time.

6g. Burden Statement

The annual average reporting and record keeping burden for the collection of information by

facilities responding to the Section 316(b) Phase II Existing Facility rule is estimated to be 2,071 

hours per respondent (i.e., an annual average of 977,293 hours of burden divided among an 

anticipated annual average of 472 facilities). The state Director reporting and record keeping 

burden for the review, oversight, and administration of the rule is estimated to average 1,101 

hours per respondent (i.e., an annual average of 46,228 hours of burden divided among an 

anticipated 42 States on average per year).

Burden means the total time, effort, or financial resources expended by persons to generate, 

maintain, or disclose or provide information to or for a Federal agency. This includes the time 

needed to review instructions; develop, acquire, install, and use technology and systems for the 

purposes of collecting, validating, and verifying information, processing and maintaining 

information, and disclosing and providing information; adjust the existing ways to comply with 

any previously applicable instructions and requirements; train personnel to be able to respond to 

a collection of information; search data sources; complete and review the collection of 

information; and transmit or otherwise disclose information. An agency may not conduct or 

sponsor, and a person is not required to respond to, a collection of information unless it displays 

a currently valid OMB control number. The OMB control number for EPA’s regulations are 

listed at 40 CFR Part 9 and 48 CFR Chapter 15.

To comment on EPA’s need for this information, the accuracy of the provided burden estimates,

and any suggested methods for minimizing respondent burden, including the use of automated 

collection techniques, the Agency has established a public docket for this ICR under Docket ID 

No. EPA-HQ-OW-2007-0142, which is available for public viewing at the Water Docket in the 

EPA Docket Center (EPA/DC), EPA West, Room B102, 1301 Constitution Ave., NW, 

Washington, DC. The EPA Docket Center Public Reading Room is open from 8:30 a.m. to 4:30 

p.m., Monday through Friday, excluding legal holidays. The telephone number for the Reading 

Room is 202-566-1744, and the telephone number for the Water Docket is 202-566-2426. An 
June 2010 41

electronic version of the public docket is available through the Federal Docket Management 

System (FDMS) at http://www.regulations.gov/. Use FDMS to submit or view public comments, 

to access the index listing of the contents of the public docket, and to access documents in the 

public docket that are available electronically. Once in the system, key in the docket ID number 

identified above. You can also send comments to the Office of Information and Regulatory

Affairs, Office of Management and Budget, 725 17th Street, NW, Washington, DC 20503, 

Attention: Desk Office for EPA. Please include the EPA Docket ID No. OW-2007-0142 and 

OMB control number 2040-0257 in any correspondence.